I have folder in ClearCase which has two Revision : Rev.1 & Rev.2.
I want to checkout the Folder of revision 1 using C#. I am using ClearCasedll to checkout the file.
But its always checked out only the latest Revision Folder (meaning Rev.2).
You have to specify the full extended pathname of the revision you wish to checkout.
See also "In ClearCase, how can I view old version of a file in a static view, from the command line?" for a practical example of selection of a previous version using extended pathname.
In your case, it might not be just about a file, but a folder content, so I would advise first to setup a (dynamic: it is quicker) view with the right config spec, selecting the right version, with a -mkbranch rule in order to prepare the checkout in its own branch (and then try your C# checkout).
But with UCM, you don't need to specify yourself the config spec if you have a Stream configured properly (ie configure to select the right version you want to checkout).
A checkout is done within the context of a view, and an UCM view is one attached to a stream: That means you will almways get the LATEST of the versions made on the branch named after that stream.
However, should you create a substream, based on the previous baseline (Rev.1), then you could checkout the right version in a new view attached to that substream.
